Study to Assess the Safety and Efficacy of Ribociclib (LEE011) in Combination With Letrozole for the Treatment of Men and Pre/Postmenopausal Women With HR+ HER2- aBC

Brief description of study

The purpose of this Phase IIIb study is to collect additional safety and efficacy data for
the combination of ribociclib + letrozole in men and pre/postmenopausal women with HR+HER2-
advanced breast cancer.